| Author | Message | ||
| gerald lancaster (64.133.8.155)
Rating: N/A |
Since neither my heater/defroster or the bus heat system works, is it possible to safely use a catalytic heater while under way? Will an after market add on heater like those I've seen on the J.C.Whitney page put out enough heat? That would be a fairly easy install, it would fit where the old defroster/heater core is now located. | ||
| RJ Long (Rjlong) (24.127.74.29)
Rating: N/A |
Gerald - Here's an even better idea (that is, if you still have the original lines running from the engine compartment): Contact either Luke or Garry Dean and get a defroster assembly out of a 4108 or 4905. Swap the 24v fans for 12v, and presto: you've got the capability of both heat AND air conditioning all in one package designed for the GM dash. Hang a little Sanyo compressor off the engine, drop an automotive condenser in front of the main radiator, pump the system full of 134a, and you're COOL! As far as a catalytic heater. . . IMHO, use JC Whitney first. RJ PD4106-2784 Fresno CA | ||
| FAST FRED (63.215.236.73) Rating: N/A |
A coach would probly leak enogh air while underway to allow a Cat heater , but you risk carbon monoxide poisoning any time its on.Especially stopped . RJ has the right idea , you will need defrosters and if you can get the foward defrosters operating again , you will have about 40 to 50,000 BTU of heat foward, a box heater plumbed in will take care of the rest. The pipling and tubing is probably ALL THERE , just get Da Book out and see what hoses you need. Even the replacement drivers temp modulation valve is still avil , for about $12. If it gets COLD ( below freezing for this wimp) you will need loads of heat , the engine has TONS of free heat so? FAST FRED | ||
| David Pinson (63.78.155.27)
Rating: N/A |
My input is this.....if you are all electric...purchase 3 or 4 ceramic heaters from Lowes or HD and install 2 in front...1 in kitchen, bathroom area and 1 in the bedroom....while converting bus to RV, sometimes in zero weather....the ceramic heaters kept us very comfortable...no fumes, no flames, cheap, quiet, portable.....however, we live in the panhandle of Texas where winters are not too severe | ||
| Jayjay (65.134.221.141) Rating: N/A |
You don't need the temp. modulation valve. It may not have enough air pressure to open and let the fluid through. Use rubber heater hose to bypass it, and maybe feed the circulating pump direct from a switch, instead of the relays on the main blower motor board in the center of the first bay. This allows you to circulate warm water at a much faster rate. Then almost any heater core and fan that will fit in the dash will do a good job. Worked on my 4905! Cheers...JJ | ||
| Tom Caffrey (Pvcces) (64.114.233.208)
Rating: N/A |
Gerald, a big catalytic heater that I remember only put out 8,000 btu, so that would be pretty puny. Tom Caffrey PD4106-2576 | ||
| Molsdorf (208.18.102.104)
Rating: N/A |
Looks like RJ has the answer!!!!!!! I was wondering about doing this myself. Good post. Larry | ||
| Molsdorf (208.18.102.104)
Rating: N/A |
Looks like RJ has the answer!!!!!!! I was wondering about doing this myself. Good post. Larry | ||
| R.C.Bishop (128.123.62.243)
Rating: N/A |
RJ.......how would that work on my Crown? Excellent idea for where it is do-able.  RCB | ||
| RJ Long (Rjlong) (24.127.74.29)
Rating: N/A |
RCB - Conceptually, I don't see why not. I know the Crown's got quite a bit of space under the dash, this means you could probably use the driver's HVAC unit out of an MCI, which should be more plentiful at this point in time. HTH, RJ PD4106-2784 Fresno CA | ||
| Henry R. Bergman, Jr. (Henryofcj) (63.224.197.10)
Rating: N/A |
Me too was wondering about having more heat and mostly more AC cold air stuff in the front of my '74 Crown Super Coach by the driver me. I got the curved windshield glass and driving the Banana Boat (her name!) on short fun runs up here in Oregon in the summertime...... ......has instilled me with the need for lots of planned front cold air conditioning. To the point where two of the three planned roof AC units are very.... .....close together and towards the front of the bus. With another under dash mounted AC unit, it would go a long way in keeping the driver (me) cool. Thanks. CROWNS FOREVER! | ||
| R.C.Bishop (128.123.62.231)
Rating: N/A |
Actually, I am curious re the use of the radiator space, especially since ours has the louvers and seemingly very little room twixt the rad and the screen. RCB | ||
| Johnny (63.159.128.192)
Rating: N/A |
Henry: Vintage air. They make retrofits for ANYTHING. I'm sure your engine (Cummins?) was used in commercial trucks, & many of those have A/C.......... | ||
| R.C.Bishop (128.123.62.199)
Rating: N/A |
Great site, Johnny. Looks like they have the answers for most any vehicle. Thanx. RCB | ||
| Henry R. Bergman, Jr. (Henryofcj) (63.224.197.10)
Rating: N/A |
Yea, the Banana Boat (her name!) has the pancake Cummins mill. Only problem, there is no more room left on the crankshaft for another set of twin pulleys. No space left. Has a twin pulley for the huge alternator, then the middle more huge twin pulleys for the radiator fan, the 2 more pulleys outboard for the power steering pump. Then on the very end of the crank is the balancer. However....I was wondering (dangerous thing!) if one of those PTO do-hickie things on the Roadranger.... ....Cound not be used to power a neat alternator or maybe an AC compressor. With a huge PTO driven alternator I could run both roof AC units thru the invertor. Or....have an AC unit running off the tranny PTO rather than trying to run it off the Cummins which has no more room for more pulleys. Thanks. CROWNS FOREVER!!! Henry | ||
| Henry R. Bergman, Jr. (Henryofcj) (63.224.197.10)
Rating: N/A |
Hey R.C., now I now what you mean. Yea, where would the AC condensor radiator mount? Not much room a all between the radiator shutters and the actual engine radiator. Where would the condensor go? If the bank account holds out, my situation may even be worse. Planning right now (planning cheap and fun!) to remove the shutters to make room for the turbo intercooler. I had not thought about where any AC condensor would go. Simply no room with my plans. Could an AC condenser be mounted under the coach like a huge tranny oil cooler? Would it quickly get ripped off or busted by road junk under the coach? Would it get enough air down there to even condense the freon stuff? Yea, lots of questions. Thanks. | ||
| R.C.Bishop (128.123.62.215)
Rating: N/A |
Henry, I just looked at the space between the vent grille and the louvers and seem to have about 4 usable inches... and will have space between the grille and a new radiator and about half an inch between the new rad and the fully extended louvers. I don't know if that is viable or not, but the site that Johnny recommended may have an answer for me. Hope to check it out next week. I started to change out the rear door this weekend. That thing is HEAVY and every screw (500 or so +- ) is requiring lots of liquid wrench. Fortunately, NO Crown Heads in the entire door. I am considering a double door swinging from vertical hinges as opposed to the single horizontal hinged style. Depends on if I can find any hydraulic piston lifts that will work on the horizontal scheme. RCB | ||
| Charley DeWalt (216.119.11.130) Rating: N/A |
Hello Henry and all, If you don't have room in front of the radiator for your condenser,put it anyplace you have room and run a large electric fan with it.This is done on street rods a lot,and the fan moves enough air to work veey well in this application.All parts are available at the local wrecking yard (recycler)at reasonable costs. HTH Charley DeWalt 82 FlyerCharl |